| 摘要 |
<p>PROBLEM TO BE SOLVED: To recognize the existence of a vehicle stopped in the front by providing a battery voltage monitoring circuit automatically cutting off a lighting LED as a load from the circuit before the restart of an engine is disabled and stopping the further consumption of the battery. SOLUTION: This rear-end collision preventing lighting system 2 is installed on the peripheral section of a reflector 1 and radiates light to the reflector 1 to light it up. When the battery voltage is decreased from the normal voltage, the voltage monitoring circuit of the rear-end collision preventing lighting system 2 is automatically operated, the input from the battery is cut off, the illumination of a LED is tuned off, and the battery voltage drop is prevented thereafter. When the engine is restarted after the illumination is turned off, the charge to the battery is automatically started. When the voltage starts to rise, the voltage monitoring circuit is again operated, and the illumination is automatically turned on by the input from the battery.</p> |
